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(jit-lock-fontify-now): Don't fontify the empty text.

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(jit-lock-fontify-again): Don't refontify text that's not displayed.
This commit is contained in:
Stefan Monnier 2006-09-26 15:35:34 +00:00
parent 444a42fd10
commit c18607470a
2 changed files with 11 additions and 4 deletions
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5
lisp/ChangeLog
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@ -1,3 +1,8 @@
2006-09-26 Stefan Monnier <monnier@iro.umontreal.ca>
* jit-lock.el (jit-lock-fontify-now): Don't fontify the empty text.
(jit-lock-fontify-again): Don't refontify text that's not displayed.
2006-09-26 Kenichi Handa <handa@m17n.org>
* startup.el (display-splash-screen): Allow a prefix argument.

10
lisp/jit-lock.el
View File

@ -349,7 +349,7 @@ Defaults to the whole buffer. END can be out of bounds."
;; Fontify chunks beginning at START. The end of a
;; chunk is either `end', or the start of a region
;; before `end' that has already been fontified.
(while start
(while (and start (< start end))
;; Determine the end of this chunk.
(setq next (or (text-property-any start end 'fontified t)
end))
@ -405,9 +405,11 @@ Defaults to the whole buffer. END can be out of bounds."
(defun jit-lock-fontify-again (buf start end)
"Fontify in buffer BUF from START to END."
(with-current-buffer buf
(with-buffer-prepared-for-jit-lock
(put-text-property start end 'fontified t))))
;; Don't bother refontifying text that's not even displayed.
(when (setq start (text-property-not-all start end 'fontified nil buf))
(with-current-buffer buf
(with-buffer-prepared-for-jit-lock
(put-text-property start end 'fontified nil)))))